Re: rollback seg. for large database

From: Jeff Hunter <marist89_at_excite.com>
Date: 2000/07/04
Message-ID: <8ju3dt$fjv$1@slb1.atl.mindspring.net>#1/1

<fly13_at_my-deja.com> wrote in message news:8jt1e0$ims$1_at_nnrp1.deja.com...
> Hi,
>
> Just 2 theory questions :
> - I would like to know if i'm right to put all the rollback segments of
> the database in the tablespace RBS ?

That's a pretty good way to start out. If you have lots of users, you may want to spread your RBS across multiple spindles.

> -And as i have to do many sorting (group by, ...), do i have to create
> additional rollback segments, and so in which tablespace ?
Sorting doesn't take place in the RBS (Sorting takes place in TEMP.) What you may be encountering is the "snapshot too old" message where your large queries can not get a consistent view of the data. In that case, you will have to make larger rollback segments.

>
> thanx by advance
>
> fly13
>
>
> Sent via Deja.com http://www.deja.com/
> Before you buy.
Received on Tue Jul 04 2000 - 00:00:00 CDT